US5553469A - Method of controlling thermally alterable profile of working rolls - Google Patents

Method of controlling thermally alterable profile of working rolls Download PDF

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Publication number
US5553469A
US5553469A US08/157,770 US15777093A US5553469A US 5553469 A US5553469 A US 5553469A US 15777093 A US15777093 A US 15777093A US 5553469 A US5553469 A US 5553469A
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US
United States
Prior art keywords
working roll
cover
cover shells
strip
regions
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US08/157,770
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English (en)
Inventor
J urgen Seidel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Assigned to SMS SCHLOEMANN-SIEMAG AKTIENGESELLSCHAFT reassignment SMS SCHLOEMANN-SIEMAG AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SEIDEL, JURGEN
Application granted granted Critical
Publication of US5553469A publication Critical patent/US5553469A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
    • B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/06—Lubricating, cooling or heating rolls
    • B21B27/10—Lubricating, cooling or heating rolls externally
    • B21B27/106—Heating the rolls

Definitions

  • the invention relates to a method of and an arrangement for controlling a the thermally alterable profile of working rolls during rolling of a strip material having different widths.
  • the working roll camber constantly increases, with the increase of the throughput of the strip material, due to the influence of the thermal load, if no correction is provided. Because of so changed thermal camber, the working roll profile deviates from a predetermined one.
  • the object of the invention is a method of and an arrangement for controlling the thermally alterable profile of a working roll which permit to adapt the actual profile of the working roll, during rolling of band materials, in particular, in the contact region of the working roll with the strip edges, to the predetermined profile of the working roll.
  • a method which includes providing cover shells for the working roll, determining a position of edges of the rolling strip on the working roll, determining a position of thermally isolating cover shells, which cover longitudinal portions of the working roll in a region of the strip edges for influencing a temperature gradient of the working roll, and displacing the cover shells to selectively cover a longitudinal region of the working roll in a strip edge contact region of the working roll with the rolling strip, and a longitudinal region of the working roll which does not contact the rolling strip during strip rolling.
  • a controlled application of cooling medium to the middle region of the working roll, as well as protecting the cover shells, e.g., by seals, from the cooling medium, provide even better matching of the actual profile of the thermally alterable working roll to its predetermined profile. According to the invention, it is also contemplated to adjust the temperature of the cover shells.
  • the arrangement for effecting the method according to the present invention includes at least one pair of thermal cover shells for partially circumferentially covering longitudinal regions of the working roll, and means for displacing the cover shells in an axial direction of the working roll for positioning of the cover shells at least in accordance with positions of edges of the rolling strip.
  • the arrangement insures corresponding averaging of the temperatures as in the strip edge contact regions of the working roll with the strip so in the region of the working roll with no contact with the strip.
  • the arrangement according to the present invention also may include a computer for calculating the thermal camber of the working roll, or measuring rolls and/or temperature sensors for determining the thermal camber of the working roll.
  • the adjustment of the profile of the working roll can be effected by providing the cover shells on a strip outlet side of the working roll, and heating means in a strip edge-contact region on a strip inlet side of the working roll.
  • the arrangement, when heating means are used, includes means for displacing the heating means in an axial direction of the working roll, and means for positioning of the heating means in accordance with positions of the strip edges.
  • the positioning means may be a part of control means for positioning the cover shells.
  • the arrangement according to the invention includes drive means for displacing the cover shells and the heating devices, if for latter are used, toward and away from the working roll to enable replacement of the rolls.
  • the displacing means for the cover shells and that for the heating devices includes two spaced guides extending parallel to the working roll and formed as threaded bars, and nut means for guiding the cover shell along the guides.
  • the guide bars have each, on opposite end portions thereof, right-hand and left-hand threads, respectively, the arrangement is further provided with a motor for rotating the guides, and a chain for synchronizing rotation of the guides.
  • two parallel guide struts for guiding the cover shells or the heating devices and a threaded bar, having oppositely directed threads and arranged intermediate the guide struts for displacing the cover shells may be provided at the working roll.
  • the displacement means for the cover shells and the heating devices may include each a hydraulic cylinder for displacing the respective cover shell or the heating device.
  • the adjustment of the working roll profile is improved when the cover shells are formed not as passive elements but include heating and/or cooling means for acting on the covered region of the working roll.
  • the cover shells may be advantageously provided with tempering device which, e.g., may be in a form of an induction heater.
  • the tempering device may include water spraying nozzle means for spraying onto a respective longitudinal region of the working roll, which is covered by a respective cover shell, lukewarm water.
  • the heating devices when used, may be arranged in the axial direction of the working roll, and may be actuatable regionwise by an appropriate control device, which may be a part of the control device for controlling the displacement of the cover shells.
  • the cover shells may have a rectangular shape, as well as, a trapezoidal, triangular or circular shape.
  • FIGS. 1a-1d show a thermally altered profile of a working roll at different operational conditions
  • FIG. 2 shows a side view of a working roll with cover shells
  • FIG. 3 shows a front view of a cover shell for a working roll (not shown).
  • FIG. 1 shows a working roll 2, 2', 2", 2'" arranged above a strip 1 and having a thermally altered profile resulting from four different operational conditions.
  • the working roll 2' has a conventional profile.
  • a substantial drop of the thermally altered camber can be seen there, which results, during rolling of the strip, in increased flatness/profile errors in the region of the strip edges.
  • the working roll 2 is covered with cover shells in the region of the strip edges.
  • the thermal curve of the camber in comparison with a conventional thermal camber, is displaced outward. This results in reduced flatness/profile errors in the region of the strip edges.
  • the working rolls 2' in addition to being covered with cover shells, are cyclically shifted in axial direction. As can be seen here, the same thermal camber is available along the entire strip width.
  • a large surface area of the working roll in the strip edge-contact region is covered with the covering shells.
  • a substantially thermally affected camber is present in the middle region of the working roll.
  • a significant drop of the thermal camber first begins outside of the strip edge-contact region.
  • An optimal displacement position of the cover shells, e.g., between operational conditions b) and d) can be calculated on a basis of computational models.
  • FIG. 2 shows the strip is the working roll 2 and a portion of a back-up roll 4.
  • the cover shells 5 and 6 for the working roll 2 are provided on the strip inlet and strip outlet sides of the working roll 2, respectively.
  • the cooling of the middle region of the working roll 2 is effected with cooling devices 7 and 8.
  • the drives 9 and 10 associated with the cover shells 5 and 6, respectively, serve for pulling the respective cover shells away from the working roll to be able to perform a necessary maintenance or to replace the working roll.
  • Conventional wipers 11, 12 prevent the cooling medium from reaching the rolling strip.
  • FIG. 3 shows bearing blocks 13 and 14 for rotatably supporting the guides 15 and 16.
  • the guides 15 and 16 are provided, on opposite sides of their respective middle regions, with right-handed threads 15', 16' and left-handed threads 15", 16".
  • the cover shells 5' and 5" are displaced, along the guides 15 and 16 in the regions of threads 15', 16', and 15", 16", respectively, by means of nuts 17', 18' and 17", 18", respectively.
  • the rotational movement of the guides 15, 16 is synchronized by a chain 19.
  • a motor 20 is provided for rotating the guides 15, 16.
  • the appropriate displacement of the nuts 17', 17", and 18', 18", upon actuation of the motor 20 in a respective direction, would provide for displacement of the cover shells 5' and 5" toward each other or away from each other.
  • the drive 10, which is not shown in FIG. 3, is connected with the bearing blocks 13 and 14 for retaining the same to thus enable the movement of the cover shells for the working roll 2 toward and away from the working roll 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Paper (AREA)
  • Metal Rolling (AREA)
US08/157,770 1992-11-25 1993-11-24 Method of controlling thermally alterable profile of working rolls Expired - Lifetime US5553469A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4239529.1 1992-11-25
DE4239529 1992-11-25

Publications (1)

Publication Number Publication Date
US5553469A true US5553469A (en) 1996-09-10

Family

ID=6473565

Family Applications (1)

Application Number Title Priority Date Filing Date
US08/157,770 Expired - Lifetime US5553469A (en) 1992-11-25 1993-11-24 Method of controlling thermally alterable profile of working rolls

Country Status (6)

Country Link
US (1) US5553469A (ja)
JP (1) JP3337287B2 (ja)
KR (1) KR970000375B1 (ja)
CN (1) CN1054786C (ja)
DE (2) DE4337288A1 (ja)
TW (1) TW309455B (ja)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5855131A (en) * 1996-05-10 1999-01-05 Siemens Aktiengesellschaft Process and device for influencing a profile of a rolled strip
US6006574A (en) * 1997-08-29 1999-12-28 Sms Schloemann-Siemag Aktiengesellschaft Apparatus and method for cooling the work rolls of a roll stand at an exit side thereof
US20050005874A1 (en) * 2000-06-09 2005-01-13 Light Elliott D. Electronic tether for portable objects
US20050139168A1 (en) * 2000-06-09 2005-06-30 Light Elliott D. Electronic tether for portable objects
US20050201543A1 (en) * 1997-11-03 2005-09-15 Light Elliott D. Status monitoring system utilizing an RFID monitoring system
US20050217607A1 (en) * 2000-06-09 2005-10-06 Light Elliott D Animal training and tracking system using RF identification tags
US20060078101A1 (en) * 1997-11-03 2006-04-13 Light Elliott D System and method for obtaining a status of an authorization device over a network
US20060140374A1 (en) * 1997-11-03 2006-06-29 Light Elliott D System and method for obtaining a status of an authorization device over a network for administration of theatrical performances
US20060197658A1 (en) * 2000-06-09 2006-09-07 Light Elliott D Electronic tether for portable objects
US20070193322A1 (en) * 2006-02-17 2007-08-23 Beck William J Application of induction heating to control sheet flatness in cold rolling mills
US20080093049A1 (en) * 2006-01-10 2008-04-24 Jurgen Seidel Method Of Casting Rolling With Increased Casting Speed And Subsequent Hot Rolling Of Relatively Thin Metal Strands, Particularly Steel Material Strands, And Casting Rolling Apparatus
US20080137822A1 (en) * 1997-11-03 2008-06-12 Intellectual Ventures Funds 30 Llc Method and apparatus for obtaining telephone status over a network
US20100089112A1 (en) * 2007-02-09 2010-04-15 Centre De Recherches Metallurgiques Asbl Device and Method for Cooling Rollers Used for Rolling in a Highly Turbulent Environment
US20100180657A1 (en) * 2007-06-04 2010-07-22 Arcelormittal France Rolling mill with cooling device and rolling process
US20110275501A1 (en) * 2008-11-18 2011-11-10 Frank-Guenter Benner Apparatus for cooling a roll on a roll stand
US20150135792A1 (en) * 2012-05-11 2015-05-21 Sms Siemag Aktiengesellschaft Device for cooling rolls
US20180009016A1 (en) * 2014-11-27 2018-01-11 Sms Group Gmbh Device and method for cooling a roll
CN115740027A (zh) * 2022-11-16 2023-03-07 济南鑫祥鑫不锈钢工程有限公司 一种热轧带钢板形自动控制设备

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101829681A (zh) * 2010-04-27 2010-09-15 中冶南方工程技术有限公司 中间辊窜辊空位乳化液窜流阻断装置
US20140090437A1 (en) * 2011-04-12 2014-04-03 Michael Trevor Clark Roll stripper device and method
CN102274885A (zh) * 2011-08-09 2011-12-14 中信戴卡轮毂制造股份有限公司 一种铝车轮热旋压工艺
DE102012202340A1 (de) * 2011-12-23 2013-06-27 Sms Siemag Ag Verfahren und Vorrichtung zum Kühlen von Walzen
CN103658189A (zh) * 2013-11-16 2014-03-26 中国重型机械研究院股份公司 一种温轧机在线热辊及温度控制的装置
FR3056419B1 (fr) * 2016-09-27 2018-10-12 Fives Dms Dispositif d'essorage d'une bande metallique
CN108746211A (zh) * 2018-05-24 2018-11-06 中国重型机械研究院股份公司 一种轧辊边部加热机构

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692118A (en) * 1949-02-25 1954-10-19 Armstrong Cork Co Method and apparatus for controlling the temperature of rolls
JPS5423060A (en) * 1977-07-23 1979-02-21 Kawasaki Steel Co Control device for roll crown while rolling
GB2080719A (en) * 1980-07-30 1982-02-10 Davy Loewy Ltd Electricity Cou Rolling mill control
US4422318A (en) * 1980-01-25 1983-12-27 Escher Wyss Limited Roller with a roller surface which is to be heated or cooled
US4612788A (en) * 1985-11-15 1986-09-23 Kabushiki Kaisha Kobe Seiko Sho Method for controlling shape of material in rolling process
US4706480A (en) * 1985-10-11 1987-11-17 Svatos Joseph D Rolling mill cooling system
US4741193A (en) * 1985-05-17 1988-05-03 Hitachi, Ltd. Method and apparatus for cooling rolling mill rolls
JPS6415208A (en) * 1987-07-07 1989-01-19 Nippon Steel Corp Method and device for measuring thermal crown of roll

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2692118A (en) * 1949-02-25 1954-10-19 Armstrong Cork Co Method and apparatus for controlling the temperature of rolls
JPS5423060A (en) * 1977-07-23 1979-02-21 Kawasaki Steel Co Control device for roll crown while rolling
US4422318A (en) * 1980-01-25 1983-12-27 Escher Wyss Limited Roller with a roller surface which is to be heated or cooled
GB2080719A (en) * 1980-07-30 1982-02-10 Davy Loewy Ltd Electricity Cou Rolling mill control
US4741193A (en) * 1985-05-17 1988-05-03 Hitachi, Ltd. Method and apparatus for cooling rolling mill rolls
US4706480A (en) * 1985-10-11 1987-11-17 Svatos Joseph D Rolling mill cooling system
US4612788A (en) * 1985-11-15 1986-09-23 Kabushiki Kaisha Kobe Seiko Sho Method for controlling shape of material in rolling process
JPS6415208A (en) * 1987-07-07 1989-01-19 Nippon Steel Corp Method and device for measuring thermal crown of roll

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5855131A (en) * 1996-05-10 1999-01-05 Siemens Aktiengesellschaft Process and device for influencing a profile of a rolled strip
US6006574A (en) * 1997-08-29 1999-12-28 Sms Schloemann-Siemag Aktiengesellschaft Apparatus and method for cooling the work rolls of a roll stand at an exit side thereof
US7280642B2 (en) 1997-11-03 2007-10-09 Intellectual Ventures Fund 30, Llc Status monitoring system utilizing an RFID monitoring system
US8464359B2 (en) 1997-11-03 2013-06-11 Intellectual Ventures Fund 30, Llc System and method for obtaining a status of an authorization device over a network
US7986770B2 (en) 1997-11-03 2011-07-26 Intellectual Ventures Fund 30 Llc Method and apparatus for obtaining telephone status over a network
US20050201543A1 (en) * 1997-11-03 2005-09-15 Light Elliott D. Status monitoring system utilizing an RFID monitoring system
US7460859B2 (en) 1997-11-03 2008-12-02 Light Elliott D System and method for obtaining a status of an authorization device over a network for administration of theatrical performances
US20060078101A1 (en) * 1997-11-03 2006-04-13 Light Elliott D System and method for obtaining a status of an authorization device over a network
US20060140374A1 (en) * 1997-11-03 2006-06-29 Light Elliott D System and method for obtaining a status of an authorization device over a network for administration of theatrical performances
US20080137822A1 (en) * 1997-11-03 2008-06-12 Intellectual Ventures Funds 30 Llc Method and apparatus for obtaining telephone status over a network
US7042360B2 (en) 2000-06-09 2006-05-09 Light Elliott D Electronic tether for portable objects
US20050139168A1 (en) * 2000-06-09 2005-06-30 Light Elliott D. Electronic tether for portable objects
US20050005874A1 (en) * 2000-06-09 2005-01-13 Light Elliott D. Electronic tether for portable objects
US7375638B2 (en) 2000-06-09 2008-05-20 Robelight, Llc Electronic tether for portable objects
US20060197658A1 (en) * 2000-06-09 2006-09-07 Light Elliott D Electronic tether for portable objects
US20050217607A1 (en) * 2000-06-09 2005-10-06 Light Elliott D Animal training and tracking system using RF identification tags
US7937042B2 (en) 2000-06-09 2011-05-03 Dot Holdings, Llc Animal training and tracking system using RF identification tags
US7958931B2 (en) * 2006-01-10 2011-06-14 Sms Siemag Aktiengesellschaft Method of casting rolling with increased casting speed and subsequent hot rolling of relatively thin metal strands, particularly steel material strands and casting rolling apparatus
US20080093049A1 (en) * 2006-01-10 2008-04-24 Jurgen Seidel Method Of Casting Rolling With Increased Casting Speed And Subsequent Hot Rolling Of Relatively Thin Metal Strands, Particularly Steel Material Strands, And Casting Rolling Apparatus
US20070193322A1 (en) * 2006-02-17 2007-08-23 Beck William J Application of induction heating to control sheet flatness in cold rolling mills
US20100089112A1 (en) * 2007-02-09 2010-04-15 Centre De Recherches Metallurgiques Asbl Device and Method for Cooling Rollers Used for Rolling in a Highly Turbulent Environment
US8281632B2 (en) * 2007-02-09 2012-10-09 Centre De Recherches Metallurgiques Asbl Device and method for cooling rollers used for rolling in a highly turbulent environment
US20100180657A1 (en) * 2007-06-04 2010-07-22 Arcelormittal France Rolling mill with cooling device and rolling process
US8438891B2 (en) * 2007-06-04 2013-05-14 Arcelormittal France Rolling mill with cooling device and rolling process
US20110275501A1 (en) * 2008-11-18 2011-11-10 Frank-Guenter Benner Apparatus for cooling a roll on a roll stand
US20150135792A1 (en) * 2012-05-11 2015-05-21 Sms Siemag Aktiengesellschaft Device for cooling rolls
US9901964B2 (en) * 2012-05-11 2018-02-27 Sms Group Gmbh Device for cooling rolls
US20180009016A1 (en) * 2014-11-27 2018-01-11 Sms Group Gmbh Device and method for cooling a roll
US10967409B2 (en) * 2014-11-27 2021-04-06 Sms Group Gmbh Device and method for cooling a roll
CN115740027A (zh) * 2022-11-16 2023-03-07 济南鑫祥鑫不锈钢工程有限公司 一种热轧带钢板形自动控制设备
CN115740027B (zh) * 2022-11-16 2023-11-10 江西恒悦金属材料有限公司 一种热轧带钢板形自动控制设备

Also Published As

Publication number Publication date
KR940011076A (ko) 1994-06-20
DE4337288A1 (de) 1994-05-26
TW309455B (ja) 1997-07-01
DE59308107D1 (de) 1998-03-12
JPH06218409A (ja) 1994-08-09
CN1093025A (zh) 1994-10-05
JP3337287B2 (ja) 2002-10-21
KR970000375B1 (ko) 1997-01-09
CN1054786C (zh) 2000-07-26

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